CN114132973A - Preparation method of modified nickel hydroxide cathode material - Google Patents

Preparation method of modified nickel hydroxide cathode material Download PDF

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CN114132973A
CN114132973A CN202010914256.9A CN202010914256A CN114132973A CN 114132973 A CN114132973 A CN 114132973A CN 202010914256 A CN202010914256 A CN 202010914256A CN 114132973 A CN114132973 A CN 114132973A
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positive electrode
solution
coating
conductive material
anode
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周翔
晁流
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Nanjing Anjiechi New Energy Technology Co ltd
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Nanjing Anjiechi New Energy Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G53/00—Compounds of nickel
    • C01G53/04—Oxides; Hydroxides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/40—Electric properties
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The invention discloses a preparation method of a modified nickel hydroxide cathode material, which comprises the following steps: 1. obtaining a positive electrode by an electrochemical method or a chemical coprecipitation method; 2. the conductive material is coated on the positive electrode by an electrochemical method or a solid-phase polymerization method. The anode material prepared by the method has the characteristics of high conductivity, excellent cycle performance, high capacity, high multiplying power and the like.

Description

Preparation method of modified nickel hydroxide cathode material
Technical Field
The invention relates to the technical field of alkaline battery manufacturing, in particular to a preparation method of a modified nickel hydroxide positive electrode material.
Background
With the progress and development of human society, energy becomes more and more important, and the energy safety guarantee becomes the safety guarantee of national economy. The traditional non-renewable energy is increasingly consumed, and obviously cannot meet the requirements of social development, so that the search for high-efficiency energy is urgent. Chemical sources of electrical energy have significant advantages. A chemical source of electrical energy is a device that converts chemical energy produced by a chemical reaction into electrical energy, which can store electrical energy and release electrical energy.
Currently, the widely used chemical power sources include lithium ion batteries, lead-acid batteries, fuel batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and the like. The above-mentioned chemical sources of electric energy have certain drawbacks and present difficult obstacles in the application process. For example, lithium ion batteries have poor safety; lead-acid batteries are not only heavy, but also have large volume, low specific energy density and environmental pollution; the cost of fuel cells is too high and the current technology is not mature; the nickel-cadmium battery has memory effect, is seriously polluted and is difficult to meet the requirement of the current sustainable development; the nickel-metal hydride battery has poor cyclicity under high temperature, low volume energy density, direct relation between self-discharge capacity and hydrogen pressure, and high research and development cost.
However, the nickel-zinc battery has low price, safety, environmental protection and high cost performance, and the positive active material of the battery is mainly nickel hydroxide, and the traditional Ni (OH)2The very poor electronic conductivity results in severe polarization, poor cycle performance and poor rate performance of the battery.
Patent CN 201380060405.8 discloses "coated nickel hydroxide powder for positive electrode active material of alkaline secondary battery and method for producing the same", which provides coated nickel hydroxide powder obtained by coating nickel hydroxide particles with a cobalt compound coating layer; patent CN 201711309094.0 discloses a "preparation method of cobalt oxide coated nickel hydroxide composite material for alkaline secondary battery", which obtains cobalt oxide coated nickel hydroxide material by oxidizing yttrium-doped spherical nickel hydroxide precursor. In the above-mentioned patent publications, the conductivity of the material is improved by coating and modifying with expensive inorganic materials such as cobalt and yttrium, but the cost is high and the improvement of performance is limited.
Disclosure of Invention
The invention aims to provide a preparation method of a modified nickel hydroxide anode material, which can reduce electrochemical polarization and stabilize structure in electrode reaction, improve capacity, control crystal form and improve conductivity by doping zinc, manganese, aluminum and magnesium elements in nickel hydroxide. And the nickel hydroxide anode is coated by a conjugated polymer material, so that the problem of poor electronic conductivity of the nickel hydroxide anode is solved, the cycle life of the anode is effectively prolonged, the performance is more remarkable under the condition of high rate, and in addition, a compact film body can be formed by coating the nickel hydroxide anode by the polymer material to inhibit the crushing. Therefore, the electrochemical performance of the nickel cathode material can be improved, and the overall electrochemical performance of the nickel-zinc battery can be improved.
The technical scheme of the invention is as follows:
a preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode precursor material:
in an electrolytic cell provided with a diaphragm, a metal salt solution with the concentration of 0.5-2M/L is added into a cathode chamber, a sylvite solution with the concentration of 0.5-2M/L is added into an anode chamber, foamed nickel is used as a cathode, and platinum is used as an anode; 0.1-1M/L ammonium chloride and ammonia water as complexing agent, adjusting pH to 8-12 with alkali solution at 1-3mA/cm2Electrolyzing for 5-10h at constant current at 50 ℃ to obtain a positive electrode material deposited on the foamed nickel;
(2) coating with a conductive material:
and (2) carrying out ultrasonic treatment on the coating material of 0.1-2M/L for 30-60min, dissolving the coating material in an organic solvent to obtain a colloidal suspension, adding foamed nickel or precursor powder with the anode material, uniformly stirring, and volatilizing the solvent to obtain the modified nickel hydroxide anode material coated by the conductive material.
Further, the step (1) further comprises the following steps:
preparing a solution A with the concentration of 0.5-2M/L from metal salt, preparing an alkali solution B with the concentration of 0.5-2M/L and an ammonia water solution C with the concentration of 0.1-1M/L; under the condition of mechanical stirring at 400-.
Further, the step (2) further comprises the following steps:
taking graphite and foamed nickel deposited with the positive electrode material as electrodes, adding 0.1-2M/L conjugated polymer monomer solution and precursor powder into an electrolytic cell, and stirring at a high speed for 30-60min in a potential interval of 0.5-5v for electrochemical coating to obtain the modified nickel hydroxide positive electrode material coated with the conductive material.
Further, the step (2) further comprises the following steps:
immersing the foamed nickel or precursor powder with the positive electrode material into a solution containing conjugated polymer monomer salt and an oxidant, keeping the temperature of the coating material and the positive electrode material at 40-100 ℃ for 2-5h according to the mass ratio of 1:5-20, washing for multiple times, and drying at 60 ℃ to obtain the modified nickel hydroxide positive electrode material coated with the conductive material.
Further, the positive electrode is Ni1-x-y-z(M1)x(M2)y(M3)z(OH)2Wherein x is more than or equal to 0 and less than or equal to 0.05, y is more than or equal to 0 and less than or equal to 0.03, z is more than or equal to 0 and less than or equal to 0.02, and M1, M2 and M3 are metal elements in the metal salt.
Further, the metals M1, M2 and M3 are any one of Zn, Mn, Al and Mg.
Further, the metal salt solution is one or more of sulfate, nitrate and chloride corresponding to Ni, Zn, Mn, Al and Mg.
Further, the coating material is a conductive material, and the electronic conductivity is greater than 1S/cm.
Further, the conductive material is an inorganic conductive material or a conjugated polymer material.
Further, the coating material is a conjugated polymer material, and comprises one or more of Polyacetylene (PA), Polyaniline (PANI), polypyrrole (PPY), Polythiophene (PTH) and derivatives thereof.
Further, the coating material is a conjugated polymer material matrix, and comprises one or more of acetylene, aniline, pyrrole, thiophene, 3, 4-Ethylenedioxythiophene (EDOT) and derivatives thereof.
Further, the potassium salt is one or more of potassium sulfate, potassium nitrate, potassium chloride and the like.
Further, the alkali liquor is one or more of potassium hydroxide solution or sodium hydroxide solution.
Further, the organic solvent includes one or more of tetrahydrofuran, acetonitrile, dichloromethane, chloroform, and the like.
Further, the oxidant comprises one or more of anhydrous ferric chloride, iodine simple substance and ammonium persulfate.
Compared with the prior art, the invention has the following beneficial effects:
1. the nickel hydroxide is doped with zinc, manganese, aluminum or magnesium elements, so that the electrochemical polarization in electrode reaction can be reduced, the structure is stabilized, the capacity is improved, the crystal form is controlled, and the conductivity is improved;
2. cobalt is not used, so that the cost is effectively reduced;
3. the conjugated polymer material is used for coating, so that a compact membrane body can be formed to inhibit crushing, the conductivity and the cycling stability of the material are greatly improved, and the battery has high specific capacity and long cycle life.
Drawings
FIG. 1 is a scanning electron micrograph of a positive electrode material of example 1;
FIG. 2 is an energy spectrum of the cathode material of example 1;
FIG. 3 is a scanning electron micrograph of the positive electrode material of example 4;
fig. 4 is an energy spectrum of the cathode material of example 4.
Detailed Description
The present invention will be described in detail below with reference to the drawings and examples, but the practice of the invention is not limited thereto.
Example 1.
A preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode material:
in an electrolytic cell provided with a diaphragm, nickel sulfate, zinc sulfate, manganese sulfate and aluminum sulfate solution with the concentration of 0.5M/L are added into a cathode chamber, and the molar ratio of each salt is 9:0.5:0.3: 0.2. 0.5M/L potassium sulfate solution is added into the anode chamber, foamed nickel is used as a cathode, and platinum is used as an anode. 0.1M/L ammonium chloride and 0.5M/L ammonia water are taken as complexing agents, the pH value of the sodium hydroxide solution is adjusted to 8, and the pH value is adjusted to 3mA/cm2Electrolyzing for 10h at constant current at 50 ℃ to obtain the anode material deposited on the foamed nickel.
The multielement positive electrode is subjected to scanning electron microscopy and energy spectrum testing, as shown in fig. 1 and 2.
(2) Coating with a conductive material:
and (2) carrying out ultrasonic treatment on the polyaniline material in methyl pyrrolidone for 30min to obtain 0.1M/L colloidal suspension, immersing the nickel foam deposited with the positive electrode material in the solution for 30min, taking out the nickel foam, and heating the nickel foam to 110 ℃ to volatilize the solvent to obtain the positive electrode material coated with polyaniline.
Example 2
A preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode material:
nickel sulfate, zinc sulfate, manganese sulfate and aluminum sulfate are prepared into mixed liquor A with the concentration of 0.5M/L, and the molar ratio of the salts is 9:0.5:0.3: 0.2. Preparing a sodium hydroxide solution B with the concentration of 0.5M/L and an ammonia water solution C with the concentration of 0.1M/L; under the condition of mechanical stirring at 400r/min, controlling the reaction temperature at 50 ℃, simultaneously dropwise adding A, B, C three solutions to control the pH value to 10, continuously reacting for 8h, washing with deionized water, and drying to obtain the cathode material Ni0.9Zn0.05Mn0.03Al0.02(OH)2。
(2) Coating with a conductive material:
mixing aniline hydrochloride and the positive electrode material in water according to the mass ratio of 5:100 for 2 hours, then dropwise adding ammonium persulfate, preserving the temperature for 2 hours at 0-25 ℃, then rapidly stirring for 4 hours, and standing overnight. And washing for multiple times until no sulfate radical is detected, and drying at 60 ℃ to obtain the polyaniline-coated anode material.
Example 3
A preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode material:
in an electrolytic cell provided with a diaphragm, nickel chloride, zinc chloride, manganese chloride and magnesium chloride solution with the concentration of 2M/L are added into a cathode chamber, and the molar ratio of each salt is 9:0.5:0.3: 0.2. 2M/L potassium nitrate solution is added into the anode chamber, foamed nickel is used as a cathode, and platinum is used as an anode. 1M/L ammonium chloride and 1M/L ammonia water are taken as complexing agents, the pH value of the sodium hydroxide solution is adjusted to 10 by 1mA/cm2Electrolyzing for 5h at constant current at 50 ℃ to obtain the anode material deposited on the foamed nickel.
(2) Coating with a conductive material:
in an electrolytic bath, graphite and foamed nickel deposited with a positive electrode material are used as electrodes, the electrodes are immersed in 0.25M/L KOH aqueous solution containing 0.2M/L aniline monomer, a potential interval of 1.1v is kept, and the positive electrode material coated with polyaniline is prepared on the foamed nickel by an electrochemical polymerization method.
Example 4
A preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode material:
preparing a mixed solution A with the concentration of 2M/L by using nickel nitrate, zinc nitrate, manganese nitrate and aluminum nitrate solutions, wherein the molar ratio of the salts is 9.5:0.2:0.2: 0.1. Preparing 2M/L potassium hydroxide B and 1M/L ammonia water solution C; under the condition of mechanical stirring at 800r/min, controlling the reaction temperature at 60 ℃, simultaneously dropwise adding A, B, C three solutions to control the pH value to 12, continuously reacting for 24h, washing with deionized water, and drying to obtain the cathode material Ni0.95Zn0.02Mn0.02Al0.01(OH)2。
(2) Coating with a conductive material:
adding acetonitrile solvent containing 0.1M/L3-methylthiophene and 0.1M/L lithium perchlorate into an electrolytic bath, then adding precursor powder of the anode material, setting the electrode voltage interval to be 5V, stirring at high speed for 30min, filtering, washing for multiple times, and drying at 60 ℃ to obtain the poly-3-methylthiophene-coated anode material. The scanning electron microscope and energy spectrum test results of the positive electrode material coated with the poly-3-methylthiophene are shown in fig. 3 and 4.
Example 5
A preparation method of a modified nickel hydroxide cathode material comprises the following steps:
(1) preparing a positive electrode material:
preparing mixed liquor A with the concentration of 2M/L by nickel sulfate, manganese sulfate, aluminum sulfate and magnesium sulfate, wherein the molar ratio of the salts is 9.3:0.3:0.2: 0.2. Preparing 2M/L sodium hydroxide solution B and 0.8M/L ammonia water solution C, controlling the reaction temperature at 50 ℃ under the condition of mechanical stirring at 750r/min, simultaneously dropwise adding A, B, C three solutions to control the pH value to 11.2, and continuously reactingWashing with deionized water for 20h, and drying to obtain the cathode material Ni0.93Zn0.03Al0.02Mg0.0.2(OH)2。
(2) Coating with a conductive material:
mixing 2, 5-dibromo 3, 4-ethylenedioxythiophene (DBEDOT) and precursor powder of the positive electrode material in a ratio of 5:100 in dichloromethane for 2.5h, removing the dichloromethane in vacuum at room temperature, keeping the temperature at 60 ℃ for 8h, washing and drying to obtain the poly 2, 5-dibromo 3, 4-ethylenedioxythiophene-coated positive electrode material.
Table 1 shows the results of the test of examples 1 to 5 of the present invention at room temperature:
item Powder impedance (omega) Capacity retention rate of battery at 1000 cycles
Example 1 2.1 82.3％
Example 2 2.4 83.5％
Example 3 2.5 80.1％
Example 4 1.8 85.6％
Example 5 1.5 86.2％
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. A preparation method of a modified nickel hydroxide cathode material is characterized by comprising the following steps:
(1) preparing a positive electrode precursor material:
in an electrolytic cell provided with a diaphragm, a metal salt solution with the concentration of 0.5-2M/L is added into a cathode chamber, a sylvite solution with the concentration of 0.5-2M/L is added into an anode chamber, foamed nickel is used as a cathode, and platinum is used as an anode; 0.1-1M/L ammonium chloride and ammonia water as complexing agent, adjusting pH to 8-12 with alkali solution at 1-3mA/cm2Electrolyzing for 5-10h at constant current at 50 ℃ to obtain the anode material deposited on the foamed nickel.
(2) Coating with a conductive material:
and (2) carrying out ultrasonic treatment on the coating material of 0.1-2M/L for 30-60min, dissolving the coating material in an organic solvent to obtain a colloidal suspension, adding foamed nickel or precursor powder with the anode material, uniformly stirring, and volatilizing the solvent to obtain the modified nickel hydroxide anode material coated by the conductive material.
2. The method according to claim 1, wherein the step (1) further comprises the steps of:
preparing a solution A with the concentration of 0.5-2M/L from metal salt, preparing an alkali solution B with the concentration of 0.5-2M/L and an ammonia water solution C with the concentration of 0.1-1M/L; under the condition of mechanical stirring at 400-.
3. The method of claim 1, wherein step (2) further comprises the steps of:
taking graphite and foamed nickel deposited with the positive electrode material as electrodes, adding 0.1-2M/L conjugated polymer monomer solution and precursor powder into an electrolytic cell, and stirring at a high speed for 30-60min in a potential interval of 0.5-5v for electrochemical coating to obtain the modified nickel hydroxide positive electrode material coated with the conductive material.
4. The method of claim 1, wherein step (2) further comprises the steps of:
immersing the foamed nickel or precursor powder with the positive electrode material into a solution containing conjugated polymer monomer salt and an oxidant, keeping the temperature of the coating material and the positive electrode material at 40-100 ℃ for 2-5h according to the mass ratio of 1:5-20, washing for multiple times, and drying at 60 ℃ to obtain the modified nickel hydroxide positive electrode material coated with the conductive material.
5. The production method according to claim 2, wherein the positive electrode is Ni1-x-y-z(M1)x(M2)y(M3)z(OH)2Wherein x is more than or equal to 0 and less than or equal to 0.05, y is more than or equal to 0 and less than or equal to 0.03, z is more than or equal to 0 and less than or equal to 0.02, M1, M2 and M3 are metal elements in metal salt, and preferably, the metals M1, M2 and M3 are any one of Zn, Mn, Al and Mg.
6. The preparation method according to claim 1, wherein the metal salt solution is one or more mixed solutions of sulfates, nitrates and chlorides corresponding to Ni, Zn, Mn, Al and Mg;
the coating material is a conductive material, and the electronic conductivity is more than 1S/cm;
the conductive material is an inorganic conductive material or a conjugated polymer material.
7. The preparation method according to claim 6, wherein the coating material is a conjugated polymer material, and comprises one or more of Polyacetylene (PA), Polyaniline (PANI), polypyrrole (PPY), Polythiophene (PTH) and derivatives thereof; or the like, or, alternatively,
the coating material is a conjugated polymer material matrix and comprises one or more of acetylene, aniline, pyrrole, thiophene, 3, 4-Ethylenedioxythiophene (EDOT) and derivatives thereof.
8. The method according to claim 1, wherein the potassium salt is one or more of potassium sulfate, potassium nitrate, potassium chloride, and the like;
the alkali liquor is one or more of potassium hydroxide solution or sodium hydroxide solution;
the organic solvent comprises one or more of tetrahydrofuran, acetonitrile, dichloromethane, trichloromethane and the like;
the oxidant comprises one or more of anhydrous ferric chloride, iodine simple substance and ammonium persulfate.
CN202010914256.9A 2020-09-03 2020-09-03 Preparation method of modified nickel hydroxide cathode material Pending CN114132973A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060024583A1 (en) * 2004-07-15 2006-02-02 Board Of Control Of Michigan Technological University Nickel hydroxide impregnated carbon foam electrodes for rechargeable nickel batteries
CN102426925A (en) * 2012-01-04 2012-04-25 黑龙江大学 Method for preparing cobalt and zinc doped nickel hydroxide composite electrode material through electrodeposition
CN103985853A (en) * 2013-12-16 2014-08-13 青岛乾运高科新材料股份有限公司 Modification method of lithium-enriched manganese-based solid solution lithium battery cathode material
CN104928713A (en) * 2015-06-17 2015-09-23 上海交通大学 Preparation method and application of nickel-based hydrogen production electrode coated with conducting polymers
CN106898498A (en) * 2017-03-17 2017-06-27 南京理工大学 A kind of polypyrrole/nickel hydroxide/nickel foam integrated electrode and preparation method thereof
CN110943221A (en) * 2019-12-16 2020-03-31 四川大学 Preparation method and application of nickel hydroxide cathode material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060024583A1 (en) * 2004-07-15 2006-02-02 Board Of Control Of Michigan Technological University Nickel hydroxide impregnated carbon foam electrodes for rechargeable nickel batteries
CN102426925A (en) * 2012-01-04 2012-04-25 黑龙江大学 Method for preparing cobalt and zinc doped nickel hydroxide composite electrode material through electrodeposition
CN103985853A (en) * 2013-12-16 2014-08-13 青岛乾运高科新材料股份有限公司 Modification method of lithium-enriched manganese-based solid solution lithium battery cathode material
CN104928713A (en) * 2015-06-17 2015-09-23 上海交通大学 Preparation method and application of nickel-based hydrogen production electrode coated with conducting polymers
CN106898498A (en) * 2017-03-17 2017-06-27 南京理工大学 A kind of polypyrrole/nickel hydroxide/nickel foam integrated electrode and preparation method thereof
CN110943221A (en) * 2019-12-16 2020-03-31 四川大学 Preparation method and application of nickel hydroxide cathode material

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